Exhibit 2 BRIO Technical Data

0220-EX-CN-2018 Text Documents

SpaceQuest, Ltd.

2018-03-07ELS_206027

   BRIO Satellite

       Exhibit 2

File #: 0220-EX-CN-2018

Technical Information


     March 7, 2018




      Submitted By

  SpaceQuest, Ltd.
  3554 Chain Bridge Road
         Suite 400
     Fairfax, VA 22030


FCC Form 442 Exhibit 2                                                                                                       File #: 0220-EX-CN-2018
Technical Information

                                                                 Table of Contents
1          Ownership, Operations and Construction. ..................................................................... 3
2          Orbital Requirements. ................................................................................................... 3
3          Service Area. ................................................................................................................. 3
4          Satellite Payload. .......................................................................................................... 3
5          Principle Specifications.................................................................................................. 4
6          System Block Diagram. .................................................................................................. 4
7          Telemetry, Tracking & Command and Payload Operations ............................................. 5
8          Radio Equipment........................................................................................................... 6
     8.1         UHF TT&C Transceiver ........................................................................................................6
       8.1.1        Downlink: UHF Transmit ........................................................................................................................6
       8.1.2        Uplink: UHF Receive ...............................................................................................................................6
     8.2         VHF Receiver: ....................................................................................................................6
     8.3         S-Band Transceiver: ...........................................................................................................6
       8.3.1        Downlink: S-Band Transmit ....................................................................................................................6
       8.3.2        Uplink: S-Band Receive ..........................................................................................................................7
     8.4         UHF Experimental Payload Transceiver ...............................................................................7
       8.4.1        Downlink: UHF Transmit ........................................................................................................................7
       8.4.2        Uplink: UHF Receive ...............................................................................................................................7
9          Antenna Systems .......................................................................................................... 8
10         Satellite Link Budgets .................................................................................................... 9
11         Interference Analysis .................................................................................................. 14
     11.1        400.50-400.65 MHz (TT&C and Experimental Downlink) .................................................... 14
     11.2        399.90 -400.05 MHz (TT&C and Experimental Uplink)........................................................ 14
     11.3        2288-2289 MHz (Payload Downlink) ................................................................................. 14
     11.4        2045-2046 MHz (Payload Uplink) ...................................................................................... 15
12         Power Flux Density Analysis ........................................................................................ 15
     12.1        400.50-400.65 MHz (TT&C Downlink) ............................................................................... 15
     12.2        2288-2289 MHz (S-Band Downlink)................................................................................... 16
     12.3        400.50-400.65 MHz (Experimental Payload Downlink) ...................................................... 16
13         Space Station Antenna Radiation Patterns................................................................... 17
     13.1        S-Band: BRIO Space Station Transmit/Receive Antenna .................................................... 17
     13.2        UHF: BRIO Space Station TT&C Transmit/Receive Antenna ................................................ 17
     13.3        VHF: BRIO Space Station Receive Antenna ........................................................................ 18
     13.4        UHF: BRIO Space Station Experimental UHF Receive/Transmit Antenna ............................ 18
     13.5        Summary of BRIO Antenna Characteristics........................................................................ 19
14         Earth Station Antenna Radiation Patterns ................................................................... 19
     14.1        UHF TT&C Antennas in Fairfax, VA, North Pole, AK and Naalehu, HI and Limestone, ME .... 19
     14.2        VHF Backup Antennas in Fairfax, VA, North Pole, AK and Naalehu, HI and Limestone, ME .. 20
     14.3        S-Band Earth Station Antenna in North Pole Alaska and Limestone, Maine. ....................... 20
     14.4        UHF Experimental Antenna in Fairfax, VA ......................................................................... 21
15         Stop Buzzer POC.......................................................................................................... 21

Exhibit 2                                                                SpaceQuest                                                                          PAGE 1


FCC Form 442 Exhibit 2                                                                                File #: 0220-EX-CN-2018
Technical Information




                                                          List of Figures
Figure 1 Orbital Parameters............................................................................................................ 3
Figure 2 System Block Diagram....................................................................................................... 5
Figure 3 Isometric view of deployed configuration. ....................................................................... 5
Figure 4 Summary of BRIO Transmitter and Receiver parameters. ............................................... 8
Figure 5 Antenna Frequency Registration ..................................................................................... 8
Figure 6 Frequency Emissions Registration .................................................................................... 8
Figure 7 Satellite UHF TT&C Uplink Budget .................................................................................... 9
Figure 8 Satellite UHF TT&C Downlink Budget ............................................................................... 9
Figure 9 Satellite S-Band Uplink Budget ....................................................................................... 10
Figure 10 Satellite S-Band Downlink Budget ................................................................................ 10
Figure 11 Satellite Experimental UHF Uplink Budget ................................................................... 11
Figure 12 Satellite Experimental UHF Downlink Budget .............................................................. 11
Figure 13 Satellite VHF Uplink Budget .......................................................................................... 12
Figure 14 Satellite VHF Link Margins Vs. Elevation Angle ............................................................ 12
Figure 15 Satellite UHF TT&C Link Margins Vs. Elevation Angle .................................................. 13
Figure 16 Satellite S-Band Link Margins Vs. Elevation Angle ........................................................ 13
Figure 17 Satellite UHF Experimental Radio Link Margins Vs. Elevation Angle ............................ 14
Figure 18 PFD at the Surface of the Earth for the UHF Transmitter............................................. 15
Figure 19 PFD at the Surface of the Earth for the S-Band Transmitter ........................................ 16
Figure 20 PFD at the Surface of the Earth for the UHF Payload Transmitter ............................... 16
Figure 21 S-Band Satellite Transmit/Receive Antenna Radiation Pattern ................................... 17
Figure 22 TT&C UHF Satellite Transmit/Receive Antenna Radiation Pattern. ............................. 17
Figure 23 VHF Satellite Receive Antenna Radiation Pattern ........................................................ 18
Figure 24 Experimental UHF Satellite Transmit/Receive Antenna Radiation Pattern ................. 19
Figure 25 BRIO Antenna Characteristics ....................................................................................... 19
Figure 26 UHF Earth Station Antenna Radiation Pattern. ............................................................ 20
Figure 27 VHF Earth Station Antenna Radiation Pattern.............................................................. 20
Figure 28 S-Band Earth Station Antenna Radiation Pattern ......................................................... 21
Figure 29 UHF Experimental Earth Station Antenna Radiation Pattern ....................................... 21




Exhibit 2                                                   SpaceQuest                                                          PAGE 2


FCC Form 442 Exhibit 2                                                        File #: 0220-EX-CN-2018
Technical Information

1    Ownership, Operations and Construction.
     SpaceQuest, Ltd. is a small business concern, and the owner, manufacturer and operator of
     the BRIO satellite. SpaceQuest has selected Spaceflight Industries of Seattle, Washington as
     the launch provider. BRIO will be launched on a SpaceX Falcon 9 launch vehicle from
     Vandenberg, AFB in California (geographic coordinates 34.5762°N; 4.2803°W) in July 2018.
     Pursuant to Part 5 §5.64 of the Commission’s Rules, construction of the proposed
     experimental satellite and associated facilities has begun prior to the Commission’s grant
     of an authorization. This is necessary given the nature of satellite construction and
     technical requirements over long lead times. Such construction is entirely at SpaceQuest’s
     risk without any assurances that its proposed experiment will be subsequently approved.
                     Space Station Name: BRIO
                     BRIO Estimated Construction Completion Date: May 2018
                     Spaceflight Final Certification of Licenses (Go/NoGo): May 31, 2018
                     Purpose: Experimental, non-Common Carrier basis
                     Orbital Type: NGSO

2    Orbital Requirements.
     The satellite is designed to operate in a circular sun-synchronous orbit as described in
     Figure 1. The satellites are based on COTS technology that allows for small, lightweight and
     low-cost spacecraft.
                                        BRIO                         Value
                         Total Number of Orbital Planes:               1
                         Celestial Reference Body:                   Earth
                         Inclination Angle (degrees):                97.52
                         Orbital Period (seconds)                    5760
                         Apogee                                      575 km
                         Perigee                                     575 km
                                       Figure 1 Orbital Parameters

3    Service Area.
     United States

4    Satellite Payload.
    The primary satellite mission of BRIO is to investigate, identify and resolve potential
    technical and implementation issues with its advanced satellite SDR radio design. Another
    important objective is to demonstrate the ability to upload and run new firmware that can
    introduce new features to the SDR Radio after it is on orbit. The results of this three-phase
    experiment will (1) demonstrate and validate the ability to uplink large numbers of
    messages to a satellite using a single channel, (2) demonstrate the ability to downlink
    messages to different ground devices on a single channel, and (3) implement an advanced

Exhibit 2                                       SpaceQuest                                     PAGE 3


FCC Form 442 Exhibit 2                                                    File #: 0220-EX-CN-2018
Technical Information

    signal processing algorithm on board a satellite to provide highly spectrally efficient
    bidirectional communications.
    The secondary satellite mission of BRIO is to test a backup receiver developed by
    SpaceQuest to send executive commands, to reboot the satellite flight computer, or to cycle
    the spacecraft power bus in the event of a system failure. As a components manufacturer,
    it is expected that the outcome of this testing will result in a significant advancement in
    satellite radio equipment technology.
     The BRIO UHF frequency assignment will be used for satellite telemetry, command and
     control. The S-Band assignment will be used to download selected mission data from the
     Myriota payload and upload new computer firmware to improve performance and correct
     any software deficiencies.

5    Principle Specifications.
     BRIO is a 3U CubeSat whose outside envelope measures 100 x 100 x 340.5mm. The
     satellite’s total mass is 5 kg. It has four deployable solar arrays, which deploy from the
     short edges of the spacecraft. The LiIon battery consists of eight cells wired as 4-series and
     2 parallel. The expected mission lifetime is 5 years in a 575-km orbit due to battery life and
     deorbit analysis. SpaceQuest will own and operate the experimental CubeSat throughout
     its mission lifetime. The BRIO satellite will not be sold or transferred to another party.

6    System Block Diagram.
     Figure 2 below shows the major components of the spacecraft and their interfaces. The
     flight computer is responsible for TT&C and payload scheduling. The attitude
     determination and control system orients the solar panels to the sun, except when the
     satellite is re-oriented to communicate with a ground station. The Software Defined Radio
     shown below is for an S-Band transceiver. The deployed array and antenna configuration is
     shown in Figure 3.
                         Command
                          Receiver




Exhibit 2                                   SpaceQuest                                      PAGE 4


FCC Form 442 Exhibit 2                                                        File #: 0220-EX-CN-2018
Technical Information

                                  Figure 2 System Block Diagram




                         Figure 3 Isometric view of deployed configuration.
     This configuration allows for two VHF and two UHF monopole antennas deployed from the
     body of the spacecraft. One UHF antenna is used for TT&C communication. The second
     UHF antenna is grounded. A third UHF antenna that is deployed from the side of the
     satellite when the solar panels are deployed is for a UHF SDR transceiver, which is a part of
     the experimental communications payload being evaluated for the hosted Myriota
     payload.
     The receive-only VHF monopole antennas are used to test a new backup receiver design to
     send executive commands to reboot the satellite flight computer in the event of a system
     failure.

7    Telemetry, Tracking & Command and Payload Operations
     The space-to-Earth downlink frequency band of 400.50-400.65 MHz and the Earth-to-space
     uplink frequency band of 399.90-400.05 MHz for TT&C communications will communicate
     with SpaceQuest’s Earth stations in Fairfax, Virginia, Naalehu, Hawaii, North Pole, Alaska,
     and Limestone, Maine. The SpaceQuest TT&C Earth stations will also have the capability to
     uplink executive commands to a backdoor command receiver at 145.92 MHz.
     The second UHF Transceiver used to evaluate Myriota’s advanced communications
     processor will also operate in the space-to-Earth downlink frequency band of 400.50-
     400.65 MHz and the Earth-to-space uplink frequency band of 399.90-400.05 MHz.
     The space-to-Earth frequency band of 2288-2289 MHz will be used to downlink
     experimental test data to SpaceQuest’s Earth stations in North Pole, Alaska and Limestone,

Exhibit 2                                   SpaceQuest                                         PAGE 5


FCC Form 442 Exhibit 2                                                  File #: 0220-EX-CN-2018
Technical Information

     Maine. The Earth-to-space uplink frequency band of 2045-2046 MHz from LimeStone,
     Maine will be used occasionally to upload new firmware to the Myriota payload.

8    Radio Equipment.
     8.1 UHF TT&C Transceiver
           NanoComm AX100 UHF Transceiver manufactured by GomSpace.
           Primary transceiver capability for telecommand, telemetry, and schedule uploads.
           The transceiver can operate between 390 and 406 MHz at 9600 bps. modulation.
     8.1.1 Downlink: UHF Transmit
        Operating Frequency 400.60 MHz
        Output Power: 3 Watts
        EIRP: 3.3 dBW
        Channels: 400.50-400.65 MHz
        Frequency Deviation: 16 kHz
     8.1.2 Uplink: UHF Receive
        Operating Frequency 399.95 MHz
        Sensitivity: -110 dBm
        Channels: 399.90-400.05 MHz
        Frequency Stability: ±10 ppm.

     8.2 VHF Receiver:
           CERX-145 Narrowband FM Receiver manufactured by SpaceQuest
           Experimental backup VHF Receiver for emergency reboot or power cycle
           145.92 MHz fixed receive frequency
           GMSK modulation at 9600bps.
           Sensitivity: -119 dBm

     8.3 S-Band Transceiver:
           GomSpace TR600 S-Band SDR Transceiver
           Primary transceiver for mission data and commands to primary payload.
           Space-to-Earth downlink operates from 2220 to 2290 MHz
           Earth-to-space uplink operated from 2025 to 2110 MHz
           700 Kbps data rate with QPSK modulation.
     8.3.1 Downlink: S-Band Transmit
        Requested Frequency 2288-2289 MHz
        Output Power: 1 Watts
        Peak antenna Gain: 7 dBi
        EIRP: 3.3 dBW
        Data Rate: 700 kbps


Exhibit 2                                  SpaceQuest                                    PAGE 6


FCC Form 442 Exhibit 2                                                 File #: 0220-EX-CN-2018
Technical Information

           Channels: Tunable SDR Transmitter from 2220-2291MHz
           Necessary Bandwidth: 1,000 kHz.
     8.3.2 Uplink: S-Band Receive
        Operating Frequency 2045-2046 MHz
        Sensitivity: -100 dBm
        Data Rate: 700 kbps
        Channels: Tunable SDR Receiver from 2025-2110 MHz
        Frequency Stability: ±10 ppm

     8.4 UHF Experimental Payload Transceiver
           ERP-100 UHF Transceiver manufactured by SpaceQuest.
           UHF transceiver to be used with Myriota’s experimental payload processor.
           The transceiver can operate between 390 MHz and 406 MHz at 9600 bps.
           Modulation is FM/GMSK
     8.4.1 Downlink: UHF Transmit
        Operating Frequency 400.60 MHz
        Output Power: 4 Watts
        EIRP: 4.5 dBW
        Channels: 400.50-400.65 MHz
        Frequency Deviation: 16 kHz
     8.4.2 Uplink: UHF Receive
        Operating Frequency 399.95 MHz
        Sensitivity: -112 dBm
        Channels: Tunable SDR
        Frequency Stability: ±10 ppm.




Exhibit 2                                  SpaceQuest                                   PAGE 7


   FCC Form 442 Exhibit 2                                                                                 File #: 0220-EX-CN-2018
   Technical Information

          A summary of the BRIO Transmitter and Receiver parameters are provided in Figure 4.

                                Transmitter           Transmitter     Transmitter          Receiver 1    Receiver 2      Receiver 3      Receiver 4
         Description                 1                     2               3
Radio Name                          UTX                  SBTX            EXTX                URX            SBRX            EXRX           VRX
Carrier Frequency, MHz             400.6                2288.5           400.6              399.95         2045.5          399.95         145.92
3 dB Bandwidth, MHz                0.015                 0.75            0.015              0.015           0.75           0.015          0.015
Necessary Bandwidth, MHz           0.035                  1.0            0.035              0.035            1.0           0.035          0.035
20 dB Bandwidth, MHz               0.020                 0.80            0.020                NA             NA              NA             NA
60 dB Bandwidth, MHz              0.035                  0.90               0.035             NA             NA              NA              NA
Receiver Sensitivity, dBm          NA                     NA                 NA              -110           -100            -110            -119
Antenna Gain, dBi                  0.0                    7.0                0.0              0.0            7.0             0.0             0.0
Modulation Type                   GMSK                   QPSK               GMSK             GMSK           QPSK           GMSK            GMSK
Total Data Rate (KHz)              9.6                   700                 9.6              9.6            700             9.6             9.6
Receiver Span (MHz)                   NA                  NA                  NA             0.15            1.0            0.15             0.05
EIRP, dBW                             3.3                 3.4                 4.5             NA             NA              NA                NA
Antenna Polarization              Linear               Circular             Linear           Linear        Circular        Linear          Linear

                            Figure 4 Summary of BRIO Transmitter and Receiver parameters.



   9      Antenna Systems
   The antenna frequency parameters for the BRIO Satellite are provided in Figure 5.
                  Lower        Upper          Freq.                 Power        Output        ERP       Mean/        Frequency      Station
     Beam                                                Power
                Frequency    Frequency        Units                 Units      Power/ERP       Units     Peak         Tolerance       Class
       SBTX      2288.0        2289.0         MHz         1.0        W               3.4       dBW        Peak        +/-10 ppm      Mobile

       UTX       400.50        400.65         MHz         3.0        W               3.3       dBW        Peak        +/-10 ppm      Mobile

       EXTX      400.50        400.65         MHz         4.0        W               4.5       dBW        Peak        +/-10 ppm      Mobile
                                            Figure 5 Antenna Frequency Registration


   The antenna emission parameters for the BRIO Satellite are provided in Figure 6.
                              Lower              Upper                                                  Modulating          Necessary
              Beam                                                    Units            Emission
                            Frequency          Frequency                                                  Signal            Bandwidth
              SBTX           2288.0              2289.0               MHz             1M00G1D             QPSK               1,000 KHz

               UTX           400.50              400.65               MHz              35K0F1D            GMSK                35KHz

              EXTX           400.50              400.65               MHz              35K0F1D            GMSK                35KHz
                                            Figure 6 Frequency Emissions Registration




   Exhibit 2                                                    SpaceQuest                                                          PAGE 8


FCC Form 442 Exhibit 2                                                 File #: 0220-EX-CN-2018
Technical Information

10 Satellite Link Budgets
     The UHF TT&C uplink budget is shown in Figure 7. Figure 8 shows the TT&C downlink
     budget.




                          Figure 7 Satellite UHF TT&C Uplink Budget




                         Figure 8 Satellite UHF TT&C Downlink Budget


Exhibit 2                               SpaceQuest                                      PAGE 9


FCC Form 442 Exhibit 2                                                 File #: 0220-EX-CN-2018
Technical Information

     The S-Band uplink budget is shown in Figure 9. Figure 10 shows the S-Band downlink
     budget.




                            Figure 9 Satellite S-Band Uplink Budget




                          Figure 10 Satellite S-Band Downlink Budget

Exhibit 2                                SpaceQuest                                    PAGE 10


FCC Form 442 Exhibit 2                                                   File #: 0220-EX-CN-2018
Technical Information

     The UHF Experimental Payload uplink budget is shown in Figure 11.




                      Figure 11 Satellite Experimental UHF Uplink Budget
The UHF Experimental Payload downlink budget is shown in Figure 12.




                    Figure 12 Satellite Experimental UHF Downlink Budget

Exhibit 2                                SpaceQuest                                      PAGE 11


FCC Form 442 Exhibit 2                                                                               File #: 0220-EX-CN-2018
Technical Information

     The VHF uplink budget is shown in Figure 13. The VHF Uplink Margin is plotted in Figure
     14.




                                                 Figure 13 Satellite VHF Uplink Budget
                                                           VHF Uplink Margin
                               35


                               30


                               25


                               20
            Link Margin (dB)




                               15                                             Backup Command Link
                                                                              145MHz at 9.6 kbps
                                                                              10 Watts Uplink Power
                               10                                             0.0 dBi Sat Antenna Gain
                                                                              8.0 Grounds Antenna Gain
                                                                              575 km Altitude
                               5


                               0
                                    0          15          30          45             60                 75     90
                                                                   Elevation Angle (Degrees)


                                        Figure 14 Satellite VHF Link Margins Vs. Elevation Angle

Exhibit 2                                                       SpaceQuest                                           PAGE 12


FCC Form 442 Exhibit 2                                                                                      File #: 0220-EX-CN-2018
Technical Information



The satellite link margins for the UHF TT&C radio are plotted in Figure 15.

                                                                      UHF Link Margins
                          35
                                                   Down link Margin
                          30
                                                   Uplink Margin
       Link Margin (dB)




                          25

                          20

                          15                                                                 Command & Telemetry Links
                                                                                             400 MHz at 9.6 kbps
                          10                                                                 10 Watts Uplink Power
                                                                                             3 Watt Sat Transmit Power
                                                                                             0.0 dBi Sat Antenna Gain
                                   5                                                         13.5 Grounds Antenna Gain

                                   0
                                        0             15              30            45           60             75           90
                                                                                Elevation Angle (Degrees)
                                                 Figure 15 Satellite UHF TT&C Link Margins Vs. Elevation Angle


The satellite link margins for the S-Band radio are plotted in Figure 16.

                                                                       S-Band Link Margins
                                        30
                                                       UPLINK MA RGIN (dB)

                                                       DOWNLINK MARGIN ( dB)
                                        25
                     Link Margin (dB)




                                        20


                                        15

                                                                                            Mission Data Links
                                        10                                                  2045 and 2288 MHz at 700 Kbps
                                                                                            10 Watts Uplink Power
                                                                                            1 Watt Sat Transmit Power
                                                                                            7.0 dBi Sat Antenna Gain
                                        5                                                   40 dBi Ground Antenna Gain
                                                                                            575 km Altitude

                                        0
                                             0          15            30            45          60             75           90
                                                                                Elevation Angle (Degrees)
                                                  Figure 16 Satellite S-Band Link Margins Vs. Elevation Angle


Exhibit 2                                                                    SpaceQuest                                          PAGE 13


FCC Form 442 Exhibit 2                                                                        File #: 0220-EX-CN-2018
Technical Information

The satellite link margins for the UHF Experimental Transceiver is plotted in Figure 17.

                                                Experimental Payload Link Margins
                           16
                                       Down link Margin
                           14
                                       Uplink Margin

                           12
            Link Margin (dB)




                           10

                               8                                            Experimental Payload Links
                                                                            400 MHz at 9.6 kbps
                               6                                            3 Watts Uplink Power
                                                                            4 Watt Sat Transmit Power
                               4                                            0.0 dBi Sat Antenna Gain
                                                                            0.0 Grounds Antenna Gain
                               2                                            575 km Altitude

                               0
                                   0     15               30         45          60            75          90
                                                                  Elevation Angle (Degrees)

                       Figure 17 Satellite UHF Experimental Radio Link Margins Vs. Elevation Angle

11 Interference Analysis
11.1 400.50-400.65 MHz (TT&C and Experimental Downlink)
     Interference with U.S. federal and commercial assignments in the 400.50-400.65 MHz band
     is unlikely as transmissions will only occur while over the SpaceQuest TT&C ground
     stations. The 400.50 to 400.65 MHz space-to-Earth band is allocated for UHF Little LEO
     data services.

11.2 399.90 -400.05 MHz (TT&C and Experimental Uplink)
     Interference with U.S. federal and commercial assignments in the 399.00-400.05 MHz band
     is unlikely as uplink transmissions will only occur while over the SpaceQuest TT&C ground
     stations. The 399.0-400.05 MHz Earth-to-space band is allocated for UHF Little LEO data
     services.

11.3 2288-2289 MHz (Payload Downlink)
     The GomSpace S-Band SDR transmitter is designed to operate in the 2220-2290 MHz band,
     but can operate slightly higher with some performance loss. Operation above 2292 MHz is
     not possible.
     The 2288-2289 MHz downlink band was chosen for the BRIO satellite, but any other 1.0
     MHz channel in the 2220-2291 MHz band would be acceptable. S-Band downlink
     operations will occur several times each day at either North Pole, AK or Limestone, ME.

Exhibit 2                                                      SpaceQuest                                       PAGE 14


FCC Form 442 Exhibit 2                                                                                       File #: 0220-EX-CN-2018
Technical Information

     Transmissions will be restricted as necessary to eliminate interference with other users of
     the band.

11.4 2045-2046 MHz (Payload Uplink)
     SpaceQuest’s S-Band satellite receiver is designed to operate in the 2025-2110 MHz band.
     A 1.0 MHz channel between 2045-2046 MHz was chosen because it appears to have the
     fewest number of license assignments. Infrequent S-Band uplink transmissions from
     Limestone, ME will be used to load new firmware to the BRIO satellite and to send
     confirmations of successful data packet downloads. Any 1.0 MHz channel within the 2025-
     2010 MHz band would be acceptable for the BRIO experiment.

12 Power Flux Density Analysis
12.1 400.50-400.65 MHz (TT&C Downlink)
The Power Flux Density for the UHF TT&C downlink is shown in Figure 18.


                                                           UHF Power Flux Density Vs. Elevation Angle
                                           -120
        Power Flux Density (dBW/m2/4kHz)




                                           -125



                                           -130



                                           -135
                                                                                          ITU Power Flux Density Limits
                                                                                          Power Flux Density (dBW/m2/4kHz)
                                           -140



                                           -145
                                                  0   10       20    30       40       50      60       70           80      90
                                                                                       Elevation Angle (deg)

                                              Figure 18 PFD at the Surface of the Earth for the UHF Transmitter




Exhibit 2                                                                 SpaceQuest                                              PAGE 15


FCC Form 442 Exhibit 2                                                                                                   File #: 0220-EX-CN-2018
Technical Information

12.2 2288-2289 MHz (S-Band Downlink)
     The PFD for the S-Band downlink satisfies the ITU PFD limits as shown in Figure 19.

                                                                 S-Band Power Flux Density Vs. Elevation Angle
                                               -140.0

                                               -142.0

                                               -144.0
            PFD (dBW/m^2/4 kHz)




                                               -146.0

                                               -148.0

                                               -150.0

                                               -152.0

                                               -154.0                                              ITU Power Flux Density Limits


                                               -156.0                                              Power Flux Density (dBW/m2/4kHz)


                                               -158.0

                                               -160.0
                                                        0   10       20     30       40       50         60         70             80    90
                                                                                              Elevation Angel (Deg)

                                                   Figure 19 PFD at the Surface of the Earth for the S-Band Transmitter

12.3 400.50-400.65 MHz (Experimental Payload Downlink)
The Power Flux Density for the UHF Experimental Payload downlink is shown in Figure 20.


                                                            Experimental Payload PDF Vs. Elevation Angle
                                                -120
            Power Flux Density (dBW/m2/4kHz)




                                                -125



                                                -130



                                                -135
                                                                                              ITU Power Flux Density Limits

                                                                                              Power Flux Density (dBW/m2/4kHz)
                                                -140



                                                -145
                                                        0   10       20     30      40        50       60          70         80        90
                                                                                              Elevation Angle (deg)

                                                Figure 20 PFD at the Surface of the Earth for the UHF Payload Transmitter


Exhibit 2                                                                        SpaceQuest                                                   PAGE 16


FCC Form 442 Exhibit 2                                                                             File #: 0220-EX-CN-2018
Technical Information

13 Space Station Antenna Radiation Patterns
13.1 S-Band: BRIO Space Station Transmit/Receive Antenna
The GomSpace NanoCom ANT2150 side-mounted S-Band Patch Antenna is used to downlink
the BRIO mission data. This circularly-polarized antenna incorporates an LNA designed to
receive in the 2025-2110 MHz frequency band, and a Power Amplifier designed to transmit in
the 2200-2290 MHz frequency band. The radiation pattern is shown in Figure 21.

                                                               0
                                                   345   10          15
                                             330          5                30

                                       315                0                      45
                                                          -5
                                 300                     -10                           60

                                                         -15
                           285                           -20                                 75

                                                         -25
                          270                            -30                                  90



                           255                                                               105



                                 240                                                   120


                                       225                                       135

                                             210                           150
                                                   195               165
                                                               180
              Figure 21 S-Band Satellite Transmit/Receive Antenna Radiation Pattern

13.2 UHF: BRIO Space Station TT&C Transmit/Receive Antenna
An ISIS Deployable Omnidirectional UHF Monopole Antenna System is used to uplink and
downlink TT&C data. It has a 0 dBi average gain and a radiation pattern shown in Figure 22.




             Figure 22 TT&C UHF Satellite Transmit/Receive Antenna Radiation Pattern.

Exhibit 2                                           SpaceQuest                                                     PAGE 17


FCC Form 442 Exhibit 2                                                     File #: 0220-EX-CN-2018
Technical Information

13.3 VHF: BRIO Space Station Receive Antenna
The same ISIS Deployable Omnidirectional Antenna has a VHF monopole element, which is used
to receive emergency commands to reboot the flight computer or to power cycle the spacecraft
in the event of a single event latch up. This small, sensitive, very low-power receiver design
that operates at a different, fixed frequency than the primary UHF TT&C receiver, can save a
mission. SpaceQuest will perform sensitivity tests of the receiver in order to characterize its
performance in the space environment. The omni-directional radiation pattern is shown in
Figure 23.




                     Figure 23 VHF Satellite Receive Antenna Radiation Pattern

13.4 UHF: BRIO Space Station Experimental UHF Receive/Transmit Antenna
An UHF Experimental Transceiver developed by SpaceQuest to investigate the performance of
Myriota’s novel protocol and processing algorithms is shown in Error! Reference source not
found..




Exhibit 2                                  SpaceQuest                                      PAGE 18


FCC Form 442 Exhibit 2                                                                 File #: 0220-EX-CN-2018
Technical Information




                Figure 24 Experimental UHF Satellite Transmit/Receive Antenna Radiation Pattern

13.5 Summary of BRIO Antenna Characteristics
Figure 25 lists the antenna parameters for the four BRIO antennas.

    Antenna Parameter                S-Band                 UHF                VHF              UHF Payload
Frequency Range:                2025-2291 MHz         399.9-400.6 MHz      145.92 MHz         399.9-400.6 MHz
Bandwidth Required:                 900 KHz               100 KHz             25 KHz              100 KHz
Emission Designator:               1M00G1D                35K0F1D            20K0F1D              35K0F1D
Number of Channels:                     1                     1                 1                     1
Space Station Class:                   EH                    ET                 ED                   EH
Beam Name:                       SBTX and SBRX          UTX and URX            VRX             EXTX and EXRX
Emission/Receive                       E/R                   E/R                R                    E/R
Max ISO. Gain                        7.0 dBi               0.0 dBi            0.0 dBi              0.0 dBi
Antenna Type:                         Patch              Monopole           Monopole             Monopole
Polarization:                        Circular              Linear             Linear               Linear
Peak Power:                         1.0 Watts            3.0 Watts         Receive Only          4.0 Watts
                                                                                                 See Error!
Antenna Pattern:                  See Figure 21         See Figure 22      See Figure 23      Reference source
                                                                                                 not found.
Link Margin:                      See Figure 16         See Figure 15      Receive Only         See Figure 17
                                Within ITU limits.    Within ITU limits.                      Within ITU limits.
Power Flux Density:                                                        Receive Only
                                 See Figure 19         See Figure 18                           See Figure 20

                                  Figure 25 BRIO Antenna Characteristics

14 Earth Station Antenna Radiation Patterns
The antenna pattern for SpaceQuest’s UHF Earth Stations are provided in Figure 26.

Exhibit 2                                            SpaceQuest                                            PAGE 19


FCC Form 442 Exhibit 2                                                File #: 0220-EX-CN-2018
Technical Information

14.1 UHF TT&C Antennas in Fairfax, VA, North Pole, AK and Naalehu, HI and Limestone, ME




                   Figure 26 UHF Earth Station Antenna Radiation Pattern.

14.2 VHF Backup Antennas in Fairfax, VA, North Pole, AK and Naalehu, HI and Limestone, ME
The antenna patterns for SpaceQuest’s VHF Earth Stations are provided in Figure 27.




                   Figure 27 VHF Earth Station Antenna Radiation Pattern.

14.3 S-Band Earth Station Antenna in North Pole Alaska and Limestone, Maine.
SpaceQuest’s S-Band antennas in Alaska and Maine are for downloading the spectrum data
captured by the Myriota payload. Only the Maine S-Band uplink will be used to upload new


Exhibit 2                                SpaceQuest                                    PAGE 20


FCC Form 442 Exhibit 2                                                       File #: 0220-EX-CN-2018
Technical Information

firmware to the satellite. An S-Band radiation pattern for these antennas is shown in Error!
Reference source not found.




                   Vertical Pattern                                 Horizontal Pattern

                   Figure 28 S-Band Earth Station Antenna Radiation Pattern

14.4 UHF Experimental Antenna in Fairfax, VA
The radiation pattern for the omni-directional transceiver antenna that communicates with the
UHF experimental payload on BRIO is depicted in Figure 29.




                                                       400.00 MHz




             Figure 29 UHF Experimental Earth Station Antenna Radiation Pattern




Exhibit 2                                 SpaceQuest                                         PAGE 21


FCC Form 442 Exhibit 2                                                File #: 0220-EX-CN-2018
Technical Information

15 Stop Buzzer POC
     The 24-hour SpaceQuest contact for interference issues is provided below:
Name: Glenn Richardson
Email: glenn@spacequest.com
Tel:   703-424-7806




Exhibit 2                                 SpaceQuest                                  PAGE 22



Document Created: 2018-03-07 14:07:51
Document Modified: 2018-03-07 14:07:51

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